Lounging chair with adjustable back and arm rest



EST

P. S- HOBEL April 20, 1965 LOUNGING CHAIR WITH ADJUSTABLE BACK AND ARM R Filed Jan. 22, 1963 I IJI;

INVENTOR. em/ s, #0551.

at each end.

United States Patent 3,179,467 LUUNGENG CHAIR VviTH ADJUSTABLE BACK AND ARM REST Philip S. Hobel, 6 Donellen Road, Scarsdale, NY. Filed Jan. 22, 1963, Ser. No. 253,697 4 Claims. (Cl. 297-359) This invention relates to a foldable cot structure having an adjustable back and arm rest. More particularly, it relates to one having an adjustable arm structure that will remain substantially horizontal in all chaise positions of the back, and will drop out of the way when the chaise is converted to a cot.

One object of this invention includes providing for a foldable cot of a conventional type which has an adjustable back rest so that the article of furniture will, at one time, be a cot with the arms completely removed from interference, and at other times, be a chaise.

Another object of this invention is to provide such an article of furniture in which the arms will remain substantially parallel to the seat portion in all positions. It is also an object to accomplish the above results with economy of manufacture and the utilization of but few additional parts. In particular, it is desired to provide such a structure that can be adapted from a standard foldable type of a cot.

The drawings show the invention from various views:

FIG. 1 is a side elevation showing the unit adapted for use as a chaise with the back substantially elevated; a secdnd chaise position is shown in dotted lines;

FIG. 2 shows the same unit in its closed, cot position;

FIG. 3 is a plan view showing thecot with the back down as in FIG. 2 and with the mattress removed.

As shown in the drawings, there is provided a cot generally depicted by the numeral 1. it includes a base portion 2 having supporting legs 3. The base portion has a mattress supporting frame 4 adapted to support the midportion of the mattress. Pivotally attached to supporting frame 4 are mattress frames 7 and 8 which are hinged at points 9 and it), respectively. As shown in PEG. 3, frame 7 has mattress-supporting springs 19 running across it. Toward the outer end of frame '7 is leg structure 12 pivotally secured to frame '7 at pivots 13. Comparably, toward the outer end of frame section 8 is a similar leg structure 14 pivotally secured at points 15.

Base 2 is braced by members 5 and 6 secured to'legs 3, to mid-frame portion 4, and to one another.

As will be readily observed, the structure disclosed thus far is that of a conventional type of foldable cot having a main supporting frame in the mid-point, and legs It is normally made of tubular aluminum.

Affixed to this structure, and in particular, to mattress supporting frame 8, is an adjustable back structure adapted to convert the cot to a chaise in accordance with the teachings of this invention. This structure includes back support pivotally secured at points 31 to mattress frame As best shown in FIG. 3, frame 3% has mattress supporting cross springs 33. A mattress l8, preferably made of a layer of polyurethane foam is disposed to rest on spring supporting members 19 and 33.

Back support 39 is retained in position by pivotally connected supporting braces 35 and 36. Members 35 and 3t; are in effect, a single brace hinged at about its midpoint at hinge 37. The lower end of brace 35 is pivotally secured to frame member 8 at pivot 15, previously described. If desirable, this pivot point may be located at a different place than the pivot used for legs 14.

It will be noted that braces 35 and 36 are preferably of substantially the same length, so the pivot point 37 is approximately the mid-point between the two braces.

Since braces 35 and 36 are hingedly connected to back 3t), frame 3, and one another, they will not, without more, serve to support the back 3d against movement. This pivotal movement, however, can be locked against further motion at any of various positions by use of the arm rest about to be described.

Hingedly secured to the pivot 37, that is the point of juncture between brace members 35 and 36, is arm 45. Arm extends generally horizontally from pivot 37 in the direction of the center of the cot and alongside frame 30. Preferably, there is an arm 45 on each side of frame 39 with comparable pivoted brace members 35 and 36.

Arms 45 have secured to their lower portions locking slotted plates 46 having groups of ridges therein 47 adapted to receive a pin 4-9 mounted on each side of rame 36. Pin 49 preferably is so located on each side of frame 3% that when the frame 3%? is in its most upright position, arm 45 running from pivot 37 to above pin 49 will be substanially parallel to frame section 8. It will be noted in this respect that a line drawn from pivot 37 i to pin l? will not quite bisect the angle formed between braces 35 and 36, but rather will lie above the line of bisection. As a result, as described below, arm 45 will remain substantially horizontal and parallel to frame section 8, regardless of the angle at which back 39 is standmg.

By the use of slottted plate 46 and the various locking stops 47, back 3% may be supported in various angular positions relative to the horizontal, or may be dropped to a horizontal position itself.

Though it is preferable to pivot arm 45 at hinge 37, one may, if desired, pivotally attach it to brace 35 below hinge 37 or to brace 36 above hinge 37. Under such circumstances, pin 59 should be lowered or raised on frame 39 by an amount sufficient to keep arm 45" horizontal. The arm when plate 47 is locked in position, will then still serve to cause braces 35 and 36 to remain fixed and to support back structure 25.

FIG. 2 shows the chaise in its dropped position for use as a cot. Braces 35 and 35 have pivoted about hinge 37 and overlie one another. Back 3t] now rests upon frame 8 so that mattress 18 is horizontal throughout its length. Pin 49 has passed to the far, right-hand end of locking plate 46 and the end of arm 45, most removed from pivot 37, is below the upper surface of mattress l8, and so completely out of the way. Through arms 35 and 35 have now defined a much sharper angle relative to one another, the line projected from pivot 37 to pin 49 remains slightly above the bisector of the angle formed by frames 35 and as. i

In use, the cot portion is first unfolded by dropping frame 7 and 8 down from its vertical storage position about pivots 9 and 1t), and opening leg units 12 and 14 about their respective pivots 13 and 15. In storage, the back 30 will have been dropped so that it rests against frame 8; and, if it is desired to use the cot as such, it will be unnecessary to open or raise it. Arm 45 will normally lie below the plane of the upper surface of mattress 18.

If it is desired to elevate the back structure, this is done simply by lifting it away from frame 8. Arm 45' will then move forward relative to back 3% and pin 49 will move relative to the slot of plate 46. The pin 49 is then set in whichever one of the locking ridges 47 is desired for the particular angle of back restsought. As shown in FIG. 1, the back is completely elevated; the dotted lines'of FIG. 1 however, show the back in a slightly lower position. It will be noted, in this latter respect, that even in the lower position, arm 45 remains generally parallel to frame 8, and the line from pivot 37 to pin 49 is above the bisector of the angle formed-by braces 35 and 36.

arrears? Though I have disclosed but one form of my invention, it will be clear to those skilled in the art that various adaptations of this may be made without departing from the spirit of my invention.

I claim:

1. In a convertible chaise having a horizontal mattress supporting frame, a back frame hingedly secured to said supporting frame, a back-supporting brace pivotally secured to said supporting frame at one end thereof and to 3. A convertible chaise having a mattress supporting frame, a back frame hingedly secured thereto, a supporting brace hinged at its mid-point and pivotally secured at its ends to said supporting frame and said back frame, an arm pivotally secured to said brace at the hinge thereof and passing adjacent to and alongside said back frame, a pin on the side of said back frame positioned above the bisector of the angle formed by said brace about its hinge, and locking means on said arm adapted to receive said 4 pin and secure said arm against horizontal motion relative to said pin.

4. A convertible chaise including a horizontal mattress supporting frame, means adapted to support said frame, a back rest pivotally secured to said frame, at least one pair of back supporting braces pivotally secured to one another at the ends thereof and pivotally secured to the back rest and frame respectively at the other ends thereof, said braces being of substantially equal length, first means to secure said braces against rotational movement with respect to one another, said first means including an arm rest pivotally secured at one end thereof to the pivot point between said pair of braces and passing along side said back rest, and second means to secure said arm rest against relative motion With respect to said back rest, said second means being located on said back rest at a position above the mid-point of the bisector of the angle formed by said pair of braces.

References Cited by the Examiner UNITED STATES PATENTS 2,282,270 5/42 Vallone 297-359 2,546,493 3/51 Booth 297359 2,668,578 2/54 Pearman a 297-359 2,812,013 11/57 Kreciglowa 297-459 2,916,085 12/59 Panicci 297359 FRANK B. SHERRY, Primary Examiner. 

1. IN A CONVERTIBLE CHAISE HAVING A HORIZONTAL MATTRESS SUPPORTING FRAME, A BACK FRAME HINGEDLY SECURED TO SAID SUPPORTING FRAME, A BACK-SUPPORTING BRACE PIVOTALLY SECURED TO SAID SUPPORTING FRAME AT ONE END THEREOF AND TO SAID BACK FRAME AT THE OTHER END THEREOF, SAID BRACE BEING ITSELF PIVOTED AT ABOUT ITS MID-POINT, AN ARM POSITIONED ADJACENT TO AND BESIDE SAID BACK FRAME AND PIVOTALLY SECURED TO SAID BRACES, AND FIXED MEANS ON SAID BACK FRAME TO SAID BACK FRAME. 